Millions of people use Microsoft Office every single day, from typing up a simple letter to making complex spreadsheets. For many, another fundamental part of the suite is SharePoint, which is used by organisations worldwide for a variety of different implementations and reasons. Until now, SharePoint hasn't had an Android app, but not any more: Microsoft's just released an early access version of the app on the Play Store.
The SharePoint app includes all the things you'd expect to find - managing team sites, document storage, Office 365 integration, and collaboration features with other team members. Documents can be edited with the Office Mobile apps (Word, Excel, PowerPoint, and OneNote), making for easy updating on your Android phone or tablet. The app is powered by Microsoft Graph, which "makes it faster to get to content and people you work with".
SharePoint is only available if your workplace or school has an Office 365 subscription which includes SharePoint Online access. If you're one of those people and have been longing for SharePoint on your Android device, you can download it on the Play Store, but beware it's in early access - i.e. unreleased - so you may encounter bugs and missing features along the way.